One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(3,7)(10,13)(14,16)(17,18)(19,27)(20,25)(21,23)(22,26)(24,28)(29,30)(31,32) involution — undirected(1,2,4,5)(3,6,7,8)(11,15)(14,16)(19,28)(20,29)(24,27)(25,30)(1,2)(3,6)(4,5)(7,8)(9,10)(11,14)(12,13)(15,16)(17,19,23,28)(18,24,21,27)(20,22,29,32)(25,31,30,26)(1,2)(3,6)(4,5)(7,8)(9,11)(10,14)(12,15)(13,16)(17,20)(18,25)(19,22)(21,30)(23,29)(24,31)(26,27)(28,32) involution — undirected(1,3)(2,6)(4,7)(5,8)(9,10)(11,14)(12,13)(15,16)(17,21,23,18)(19,24,28,27)(20,30,29,25)(22,31,32,26)(17,22)(18,26)(19,29)(20,28)(21,31)(23,32)(24,25)(27,30) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.